Blue DEF
Just wondering about DEF for your diesel trucks. My dealer that I bought my truck from said just use Blue DEF and nothing else. I talked to another camper with a diesel truck and he said he buys the...
Forum Discussion
Frank55 wrote:
I bought the cheap stuff...once...check engine light came on, said it was a DEF issue. Used the Blue, after about 2-3 tanks of fuel, the CEL went away, no problems in 50,000 miles.
It would be nice to know what truck and what the trouble code was so that we might learn something.
